Display screen or portion thereof with graphical user interface



FIG. 1 is a front view of a display screen or portion thereof with graphical user interface, showing my new design; and,

FIG. 2 is a front view thereof, shown in an example environment.

The dot-dash broken lines define the bounds of the claimed design and form no part thereof. The broken lines illustrate portions of the display screen or portion thereof with graphical user interface and form no part thereof. 

CLAIM The ornamental design for a display screen or portion thereof with graphical user interface, as shown and described. 